X/3+0=7

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Solution for X/3+0=7 equation: 


X in (-oo:+oo)

X/3+0 = 7 // - 7

X/3-7+0 = 0

X/3-7 = 0

1/3*X-7 = 0 // + 7

1/3*X = 7 // : 1/3

X = 7/1/3

X = 21

X = 21

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